Apparatus for handling coiled metal stock



Oct. 21, 1958 R. B. Fou Ks' APPARATUS FOR HANDLING COILED METAL-STOCKFiled Jul 1, 1955 5 Sheets-Sheet 1 INVENTOR- ROBERT a. FOULKS N? Ha M 9m or mm N ON Vm A ORNEY Oct. 21, 1958 R. B. FOULKS APPARATUS FORHANDLING COILED METAL STOCK 5 Sheets-Sheet 2 Filed July 1, 1955 oooooooo -Oo INVENTOR ROBERT B. FOULKS ORNEY Oct. 21, 1958 R. B. FOULKS2,857,115

APPARATUS FOR HANDLING comm METAL sTocx- Filed July 1, 1955' 5Sheets-Sheet 3 INVENTOR ROBERT a. mums Oct. 21, 1958 R. B. FouLKsAPPARATUS FOR HANDLING COILED METAL STOCK 5 Sheets-Sheet 4 Filed July l1955 INVENTOR ROBERT B.

FOULKS I I I y v N. mm M m NM ATTORNEY Oct'. 21, 1958 R. B. FOULKSAPPARATUS FOR HANDLING COIL-ED METAL STOCK Filed July 1, 1955 5Sheets-Sheet 5 REEL EXPANDING OYL.

con. ELEVATOR BEN mus ROLL CYL SENDING ROL C YL.

INVENTOR. BY ROBERT a. Fouuxs STRIPPER OYL -A Tram/5f United StatesPatent APPARATUS FOR HANDLING COILED METAL STOCK Robert B. Fonlks,Spokane, Wash., assignor to Kaiser Aluminum & ChemicalCorporation,..()akland, Calif a corporation of Delaware Application July1, 1955,'Serial Na 519,373

11 Claims. (Cl. 2. 12 -79) This invention relates, in general; toapparatus for" handlingmetal stock in .coiled form. .More particularly,it is concerned with providing a noveliele'vator apparatus whichoperates in conjunction witha coil stripping iapparatus so as to,transfer coiled metal-stock from an axial coil support such as a reel,mandrel or block to :othercoil haildling apparatus.

Accordingly, it is an object of thisinvention to provide a. novel'coilhandling and.transferring apparatus of improved design with respect tothe manner in which coiled stock is transferred from an axial coilsupport to other coil handling apparatus.

It is another object of this invention to provide an improved form ofmechanismfor engaging. and transferring coiled metal strip from awinding or blocking reel or mandrel wherein contact with the coiledstripis first made by means of rollers disposed in axial alignment with theaxis of the coil and thereafter by rollers whose axis is locatedtransversely to the axisof the aforesaid first mentioned rollers.

It is another object of this invention to provide a novel coiltransferring device comprised of a coil elevator which is. adapted toreceive coiled metal stock from a winding or blocking reel or mandreland to transfer the coiled material in a direction parallel to the axisof. both the reel and the coiled material.

It is a further object of this invention to provide a:nove1 coil.transferring mechanism which is especially-adapted for handling highlyfinished strip metal in a manner afiording maximum protection to thesurface finish of the metal.

It is another object of this invention to provide a novel coiltransferring mechanism for removing coiled strip.

from, a coiling reel or mandrel and transferring the same to other coilhandling apparatus wherein the possibility of loosening of the wraps ofthe coil is reduced to a minimum.

It is a further object of this invention to provide a novel coilhandling apparatuswhich is adapted to remove a strip of coiled materialfrom a reel or other similar apparatus and transfer the same to anothercoil handling apparatus together with novel control means for operatingthe same.

These and other objects of the invention will become more apparent froma review of the following detailed description when taken in conjunctionwith the accompanying drawings illustrating a preferred embodiment ofthe.- invention, wherein:

Figure l is a plan view of the novel coil elevator and transferringapparatus of the instant inventionand shows its position with respect.to an additional-handling device;

Figure 2 is a side viewof the .novel coil elevator and transferringapparatus shown inFigure 1;

Figure 3 is a transverse sectional view' ofthe apparatus disclosed inFigure 2 when taken alonglines 3-.-3 thereof;.. Figure 4 is anenlargeddetailed sectional viewofthe novel ironing roll mechanismassociated with the elevator apparatus of Figure 1;

Figure 5 is a partial elevational view of the instant device similar toFigure 2 but in detail and in partial section; and

Figure 6 is a schematic view of a suitable type of hydraulic orpneumatic control system that may be used for operating the apparatusdisclosed in Figure 1 as well as associated apparatus used-therewith.

In general, the apparatus comprises an elevator 1. This coil elevator 1in turn is provided with a coil receiving platform or table 2. The coilreceiving platform or table 2 is formed from a pair of opposingupstanding elongated plates or plate members 3 mounted in parallelspaced relationship to one another. The lower edges of each of the sideplatesi3 are welded to an elongated bottom'plate 4. Bottom plate 4 isinterrupted intermediate its ends to provide a generally centrallydisposed portion 4' for purposes to be hereinafter described. Journaledbetween the plates 3 and above the plate 4 at each side of the coiltable 2 are groups of rolls 5 and 5'. Located between the groups ofrolls 5 and 5 is an ironing roll assembly 6. Ironing roll assembly 6 inturn is comprised of a pair of ironing rolls 7 The function of theironing roll assembly is to engage the outer periphery of the coil asthe last turns thereof are made on the reel or mandrel and, in so doing,to keep these turns folded and against the coil proper until the reelhas stopped rotating so that the trailing or tail end of the strip willnot flap about or be uncontrolled as the mandrel slows and stops. Theseironing rolls 7 are rotatably mounted by means of bearings 8 onshaft 9,the shaft 9 being journaled in spaced pairs of bracket members 10. Asindicated particularly in Figures 4 and 5, bracket members 10 aresuitably Y secured on a vertically movable, horizontally extending blockmember 11. The block member 11 rests on the centrally disposed portion 4which in turn is reinforced by a heavy plate member 12 secured to theplates 4 by bolts or other suitable removable fastening elements. A

pair of parallel, spaced side plates 13, 13' are Welded to the block 11thus defining a channel-like receptacle which is adapted to be fittedwithin the generally elongated channel-shaped receptacle formed by theside walls 3 and the adjacent end bottom plates 4 of the coil table 2.Thus it may be seen that the axes of rotation of ironing rolls 7 aredisposed at a right angle with respect to the axes about which the rolls5 and 5' rotate. Further, it is apparent that the assembly 6 may, byreason of the fact that the block member 11 is vertically movable, beraised and lowered with respect to the elongated channel assembly suchthat the peripheral surface of the ironing rolls 7 may be positionedboth above and below a horizontal plane such as is in effect generatedby accumulated surfaces of rolls 5, 5'. for raising and lowering the twoironing rolls 7. The means may comprise a piston-like member 14 mountedwithin an annular recess 15 in the central portion of block 11. Fluid isadapted to be directed into the annular recess or opening 15 by themedium of conduit 16 which is connected with a centrally disposed port16' in piston-- like member 14,- as indicated particularly in Figure 4.Entry of fluid through conduit 16 and port 16' into the annular recess15 in block member 11 will cause vertical displacement of the blockmember 11 as the hydraulic fluid Within the recess 15 exerts pressureagainst the annular end 15' of'therecess 15,'since the piston likemember 14 is rigidly atfixed to the plate 4 in turn reinforced bymembers 12. Movement of block member 11 along with ironing rolls 7 willbe effected-at a predetermined time as will be hereinafter described.

If. desired, guide members may also be provided at the A suitable meansis also provided opposite ends of the block 11 such as cylindrical pinmembers 18, 18' fixedly secured to the centrally disposed portion 4'.These pins are in turn slidably telescopic within suitably providedannular. openings 19 as indicated particularly in Figure 4 in themovable block member 11 at the opposite extremities thereof. Thus it maybeseen that the ironingroll assembly 6 comprises an integrallyinsertable unit which rests within the elongated channel assemblydefined by plates 3 and 4. By theme of removable fasteners 37 andtapered guide pins 37' as shown in Figures 4 and 5, the entire unit 6may be removed and replaced readily thus facilitating maintenance of thehydraulic equipment It is also to be observed by reference particularlyto Figures 1 and 2, that the one end of the coil supporting table 2,that is, the discharge end or right handed end as viewed in Figures 1and 2, is provided with an extension 2. Extension 2' in turn isconnected to the main portion of the table 2 through the medium of theintermediate connecting member 20. The anchoring member 20 may be formedof a casting comprising a fork including spaced prongs 21, 22 which arepositioned in face abutting relation against the elongated plate members3 and are bolted or otherwise fastened in rigid relation therewith. Asmay be seen from an inspection of Figures 1 and 3, these prongs 21, 22extend a considerable distance along members 3 and may include steppedportions 21', 22' which may serve to reinforce the plate 12 if desiredby welding or otherwise fastening the longitudinal marginal edges ofplate member 12 to the stepped portions 21', 22' of the prongs 21, 22 ofthe intermediate connecting member 20. It is to be noted that the heavyplate member 12 is provided with apertures 12' coinciding with and ofsimilar dimensions to the apertures or recesses in plate 4' throughwhich pins 18, 18 and piston like member 14 may be inserted.

The member 20 also includes a collar-like element 34 I which is sopositioned as to surround and be movable with respect to a verticalchannel member 40 to be hereinafter described. The member 20 is furtherconnected to the elevator extension 2' by a similarly arranged forkedstructure which includes bracket-like prongs 23.

The extension 2 is provided as is the case with the rest of the coiltable 2 with side plate members 3 and a bottom member (not shown) with agroup of rolls being suitably journaled between the upstanding sideplate members 3' of the end extension 2 and either the bottom plate (notshown) or side plate members 3 may be fastened by any suitable fasteningmeans to the bracket-like prongs 23. It is to be noted that the prong 21may also support an apron or strip guiding member 28 on bracket members39. 1

Means are also provided for raising the coil elevator table 2 togetherwith its extension 2 upwardly, which means are separate and apart fromthe means used for elevating the ironing rolls. Thus, it is possible toraise and lower the ironing rolls 7 independently of the coil table andits extension 2 and 2. The means forraising and lowering the coil table2 and 2' as a unit will now be described.

' These means comprise a pair of upright jack assemblies 26, 26. One ofthese jack assemblies is rigidly secured to one end of the coil elevatortable 2, while the other jack assembly 26 is adapted to be secured in asuitable manner to the intermediate anchoring member 20. Since both ofthese jack assemblies are similarly constructed, a description of onewill suffice for both. Jack assembly 26, for example, is comprised of astationary piston 27 having axial ports 27' rigidly aflixed to a baseplate 28 mounted on a rolling mill floor. The piston is adapted to bereceived within a cylinder opening or bore 29 in the bottom of thecylinder barrel member 30. The upper extremity of this cylinder barrelmember 30 is provided with a slot 31 which is adapted to receive anoutwardly projecting stepped end member.

32 to which the side plates 3 and the bottom plate 4 of the coil table 2are connected as by welding. The bottom portion of the outwardlyprojecting stepped end member 32 is adapted to rest in the bottom 35 ofthe slot. End member 32 is also rigidly secured by suitable bolt means33 to the upper portion of a cylinder. barrel member 30 as is apparentfrom an inspection of Figure 5. It will thus be obvious that upon theintroduction of fluid through the medium of suitable conduits 36 foreach of the jack assemblies 26, 26 and the passage thereof through ports27' to the top of the opening 29 will cause the cylinder 30 and thus theentire assembly including table 2 together with its extension 2' to moveupwardly. Each jack assembly 26, 26' is also mounted within an uprightchannel member 40 which serves to guide the cylinder barrel member 30 inits upward and downward travel. Suitable anchoring members 41 may beused for further securing vertical channel members 40 to the floor ofthe mill. 1

In order to provide for equalization of the upward and downward movementof the jack assemblies 26, 26',

a pair of similar links 42, 42' are connected to the cylinder members 30through a suitable slot 41' in the channels 40. These links arejournaled at 4310 cylinder members 30 and include an articulatedconnection by means of pivots 45 and levers 44 with a shaft 46 to whichlevers 44 are keyed. Thus, since shaft 46 is interconnected to bothhydraulic jack assemblies 26,26 neither most position, as shown indotted lines in Figure 2, of

the elevator mechanism.

Although the coil elevator of the instant inventionrnay beadvantageously used with various 'types' of coil handling apparatus thepreferred embodiment of the inven-' tion contemplates that it beemployed with a collapsible type reel or mandrel 200 of conventionaldesign and located adjacent the exit end of a rolling mill.

described hereinafter, and thereafter transfer the coil along a lineparallel to the axis thereof and onto another coil handling apparatus orsystem such as that shown in line of rollers is suitably mounted uponstandard members 55, 56. A detailed discussion of the mounting means forthese plates is not believed necessary since it does not form any partof the instant invention. also be noted by reference to Figure 1 thatthe plate members 54 for each line of rollers are so spaced from oneanother that they provide an opening 57 therebetween within which theextension 2' of the coil apparatus is adapted to recede at the time thatthe coil elevator 1 is retracted or at the time fluid is evacuated fromthe' top of the cylinder bores 29 in the jack assemblies 26, 26'. ofrollers 51 and 52 are also inclined slightly so that the The coil"elevator is adapted to receive the coil 47 indicated in dotted lines inFigure 3 after the collapsible reel or mandrel 200 is collapsed by asuitable mechanism to be It will It will also be noted that the rollersin each line coil, will be moved across the conveyortrough 50 ontoanother coil handling apparatus, or device such. as that disclosed incopending application S. N. 519,312. In addition, it is alsocontemplated that the coil elevator mechanism may-be used in conjunctionwith. the col-. lapsible reel 24 of a coiling block as well as a bendingroll assembly 70 comprised of two stationary rolls 71 and 72 along' witha bending roll 73 which is adapted to becomeseated in the. twostationary rolls 71 and 72 at the proper time. A suitable type ofbending roll apparatus is disclosed in Patent 2,699,904 to Wood alongwith suitable apparatus for operatingthe same. Accordingly, a detaileddescription of the. means for operating the bending rolls is notbelieved needed in this application with the exception, to be discussedhereinafter, of the hydraulic cylinders whichmay be employed foroperating the linkage mechanism for the bending roll, namely, hydrauliccylinders 74 .and 75 whichare shown in Figure 6.

In addition, suitable means are also provided such as a. stripper bar60, well known in :the art, for moving the. coil oil of the collapsiblereel or mandrel 200, after the samehas been collapsed in a mannerwell'known'in the art. The stripper bar 60 in turn is connected to apiston rod 61Which is adapted to reciprocateina hydraulic cylinder 62suitably mounted adjacenttthe collapsible reel 24 and adjacent the coilelevator. 1.

A suitable type of hydraulic system is provided for operating thestripper bar. 69, expanding and contracting the collapsible reel ormandrel 200, actuating the hydraulic jack assemblies, 26", the bendingroll assembly 70% well as the ironing roll assembly 6 and the bendingroll hydraulic cylinders 74-and -75.--. This by? draulic system is.diagrammatically shown in Figure 6.

As may be seen from inspection of Figure 6 the system isvcomprised of areservoir tank 81., Mounted on thetank is a pump 82 adapted to be drivenin a suitable mannerby a motor 83. The exhaust port 84'of the pumpisconnected to a conduit-85 and the intake port 86 of the pump isconnected by line. 87 to the tanlc, Conduit; 85 is connected to afour-Way solenoid operated Valve 90. Branch lines 88, 91 connectsconduit 85. toa second -four+way solenoid .operatedvalve 89. Valve89 isprovided with a main intake port 93 and a main exhaust-port 94 which isconnected by line 9110 thereturn mainconduit 96. which leads to thetank. Valve 89 alsocontains anexhaust port 97 which is. connected byline-98 and 98" tothe rod end of the bending roll hydraulic cylinders 74and 75. The other exhaust opening .99 of valve 89 is connected by lines95 and 100 to the bottom portion of the hydraulic cylinders 74 and-75.Conduit 16 also connected to line 95 leads to the piston like member14and annular. recess 15 for. controlling the movement of the ironingrolls 7 afixed to the coil table 2.

The four-way valve 90 is provided with a main intake port 101 and a mainexhaust port 102, the latter of which is connected to the returnmain-conduit96. The other two ports 103 and 104 of valve 90 areconnected to lines 105 and 106, respectively. Line 105 is-also connectedto line 107, one end of which leads into the rod end of the hydrauliccylinder 62 for actuating the piston r0d61 which controls thestripper'bar 60 for removing thecoil from the collapsible reel 200. Theother end 104 of valve 90, Port 104 of valve .90'is1also connected tothe. jack assemblies 26 and .26'--through'..the..me.dium. of lines 120,valve 117 and lines 121,. 1211'; and 'valve 118'; and lines 122. Havingdescribed the. components form-Q. ing the hydraulic control system,reference isagain made. to Figures 1 and din-consideringthe.operationof.the: instant arrangementwhich is as follows:

The last or tail. portion of,.the..strip. ,totrbe. coiled as. itadvances close to .the reel operates .the.s0lenoid oper.-. ated valve 89in such a manner as to actuatezthe. bending. roll motors 74 and'75. The.expansion ofthese motors; moves the top bendingroll 73 of tl'iebendingroll assem.-.. bly 70 into a nestedposition'upon thestrip andbetweenrolls 71 and 72 so, as to, put-a positive..bend. .in.the.tail;end of the strip as indicated in the referred. to.;patent ..to. Wood.Fluid for actuating the -ironing roll pistomlike. member 14 and recess15 .al sotwillqcomeirom the line... to move the ironingrolls. 7upwardly... At. approxi:.: mately the same time, thecoilingfrnachine,operator will; actuate valve 89 such that port:93--is connected to po t-99 and port 97 is connectedto. port 94.. .Thusfluidwillt pass from thepump 82 through conduit 85 and branch. line 88, valve 89 and through.lines 95.ar 1d.10.0.into the.v bending hydraulic ,cylinders74 and 75.thus, causing ex pansion thereof and operation of the top bendingroll-73.: At the saime time, fluid will also. be. caused torpassthroughvconduit 16. connected to1ine-95 into theannue. lar recess 15 foroperating the ironing rolls .7...-.In the meantime, of course,.. fluidinthe .top. of the. hydraulic cylinders 74 and 75 will be caused to passoutofrthese; cylinders through lines 98, 98, valve 89,..and through 91,to line 96 and back to, the. reservoir. 81. Thus,z when the top bendingroll. 73 and .theiironing rolls 7.are,:actu-;: ated, the ironing rollswill becaused .to be-raised: slightly; above the level of the remaining.rollassemblies 5 and 5' on'the coil elevator table 2..;At this. time..also, the. coil elevator 1 is still maintained in,its lowermost posi:tion. When the coil begins to slowdown in; its move-H ment, as the motorfor driving. theblockorreelon-the. coiling device. referred toisdeenergized, theapreferred, embodiment of theinventioncontfimplatesthat the.,cQil-- elevator 1 iscaused tomovempwardly toapoint where; the ironing roll 7 will bebroughtintoicontact with the; lower portion of .the coil-onthecollapsiblereel or ma11- drel 200. This is accomplishedby having,theaoperatorr manipulate valve to the pointwhere intakeport;101 will beconnected to port 104 and-port103 .willtbe connected to exhaust port102.. Whenth above. portsare: so connected fluid will then pass-underpressure, fromi pump 82 through line 85 and. valve .90 into; lineil l i.where it is first passed .through:li nes.120, 12.1,:121' and: 122 aswell as valves 117 and .118;into.-the bottom'o f; the jackassemblies 26and 26., thereby causing the cyl inder barrel portion 30 of the jackassemblyv to be raised: and in turn causing a raising of the-coilelevator assern: bly as a whole.

At this time the ironing rolls 7 will be :under greater; hydraulicpressure than the main coilelevatorl andgas. such, the main coilelevator will not-beincontact with the lower portion of the coil. It iscontemplatedsthat the actuating pressure on the ironingroll'j issuchthat, it is just slightly above that onthe main coil elevator- 1;?At this time a workman may jog. the coil:on the coiling; machine bycausing slight rotation .of the collapsiblereel; 24 until the tail endof the coilwill. be; locatedin'the bottom area or in substantiallyimmediate contactwitht the ironing rolls 7. Because, of the pressure onthezirona'. ing rolls 7 due to their contact with the coil-stockthe;piston like member 14 and annular recess 15 willjact: 38 a hydrauliclock preventing. further upward movement;

of the jack assemblies 26,- 26'. At; this time. .alsotrthe fluid whichis being passed throughvalve .90, :lines.120," 121, 121' as well as 122will be caused toabackilupzzin. the several pressure controlsequence"valveszrlfl'sqandu 118.

After the coil has been jogged around to the proper position so that thetail end thereof is located at the bottom of the coil the pressure onthe ironing rolls 7 is released by reversing valve 89. Reversing ofvalve 89 causes a connection of ports 93 and 97 and 99 and 94. Thus,fluid will be caused to pass into the top of bending roll hydrauliccylinders 74 and 75 from line 98 through valve 89. and lines 98 and 98'.The fluid exhausted from the bottom of the cylinders will then beallowed to pass along with the fluid from the annular. recess 15 for theironing rolls 7, from lines 95 and 16 through valve 89 and into line 91which leads to line 96 and back into the tank 81. As the pressure forironing roHs 7 is relieved the hydraulic lock which prevented upwardmovement of the cylinder barrel members 30 of the jack assemblies 26 and26' will be released. Thus valves 117 and 118, respectively, will openthereby allowing fluid to be passed again from line 120 through valves117 in line 121 as well as line 121' and valve 118 and line 122 into thehydraulic jack assemblies so as to cause upward movement of the cylinderbarrel members 30 and in turn continued upward movement of the coilelevator 1 until the roll assemblies and 5' come into contact with theouter periphery of the coil. As the fluid is evacuated out of theannular recess which is operated to hold the ironing rolls 7 in theirproper position, these rolls will fall a slight amount below the topsurface generated by roll assemblies 5 and 5 on the main coil elevator,which rolls will then be in contact with the coil, such that the ironingrolls cannot interfere with the free movement of the coil and the otherrolls Sand 5' of the coil elevator 1. By this manner of operation thetail end of the coil will be constantly under pressure so that it cannotbe released from the coil proper and will remain folded or wrappedthereagainst. It will also be noted by referring to Figure 5 that thecylinder barrel of the jack assembly 26' is provided with a cam portion140. A suitable switch mechanism 141 is adapted to be tripped by thiscam portion. As the elevator moves upward this will cause a closing ofthe solenoid operated valve 111 which causes ports 112 and 113 to beconnected. Fluid can then pass by pressure through line 106, valve 111,lines 110 and 109 into the stripper cylinder 62 and the reel expandingcylinder barrel 108.

This in turn causes actuation of the piston rod 61 for the stripper barwhich moves the coil off the collapsible reel 24 while simultaneouslythe fluid from line 109 is passed into the reel expanding cylinderbarrel 108 causing it to contract thereby facilitating the coilstripping operation from the collapsible reel 24. Fluid exhausted fromthe hydraulic cylinders 62 and 80 is permitted to return to the tank 81through the medium of the return lines 107, line 105, the ports 103 and102. The coil is thus moved across the table portion 2 onto theextension 2 of the coil elevator 1 until it abuts a stop member 150 atthe end portion of the coil elevator table extension 2'. When this hasbeen accomplished the operator then reverses valve 90 so that ports 101and 103 are connected. At the same'time, ports 102 and 104 will beconnected. At this time, fluid will be caused to pass from the pumpthrough lines 85 and ports 101 and 103 of valve 90 into lines 105 and107 thereby causing retraction of the stripper bar and an expansion ofthe mandrel 200 through the medium of the reel expanding cylinder barrel108. At the same time fluid will also pass downward through the fixedpiston of jack assemblies 26, 26 because of the weight of the coil aswell as the weight of the coil elevator mechanism 1. Thus the fluid willpass from the jack assemblies 26, 26 through the medium of lines 121 and122, valves 118 and 117 and line 120 and 121 into the conduitline 106,ports 102 and 104 of valve 90, and finally into the return line 96 whichleads back into the tank 81." The lowering of the jack assemblies 26 and26'.will then cause the coiled stock to come into contact with therollers 51 and 52 of the conveyor trough 50. As indicated above, thestock is then transferred onto such other coil handling apparatus as maybe de-' sired.

The coil elevator mechanism is then in a condition for repeatedoperation in the manner described above, after the bending rollcylinders are operated by the solenoid operated control valve 89.

An advantageous embodiment of the invention has been herein disclosedand described. It is obvious that various changes may be made thereinwithout departing from the spirit and scope thereof as defined by theappended claims, wherein what is claimed is:

1. In a coil elevator apparatus of the type to be disposed beneath acoiling mandrel, the combination of a coil supporting elevator tableprovided with a plurality of coil engaging rollers, means for raisingand lowering said table and said rollers, an ironing roll mountedcentrally on said table and disposed between a selected pair of adjacentones of said coil engaging rollers, the axis of rotation of said ironingroll being disposed parallel to the axis of winding of a coil to beplaced on said table, and means operable independently of said firstmentioned means for vertically raising and lowering said ironing rollabove the top level of said elevator table so as to engage the outerperiphery of the coil.

2. In a coil elevator apparatus of the type to be disposed beneath acoiling mandrel, the combination of a coil supporting elevator tableprovided with a plurality of coil engaging rollers, the axes of rotationof said rollers being disposed at a transverse angle to the axis ofwinding of a coil located on the coiling mandrel, an ironing rollmounted centrally on said coil table and disposed between a selectedpair of adjacent ones of said coil engaging rollers, the axis ofrotation of said ironing roll being disposed parallel to the axis ofwinding of a coil on said coil elevator table, means for verticallyraising and lowering said ironing roll above and below the top level ofsaid coil supporting table, separate means for raising and lowering saidcoil supporting table, and a common hydraulic system for operating andsynchronizing the actuation of both of said raising and lowering means.

3. In a coil elevator apparatus of the type disposed beneath a coilingmandrel, the combination of a coiled article receiving elevator table,roller means for contacting a rotating coiled article carried on saidmandrel prior to operation of said receiving table, said roller meansbeing mounted centrally of said table, said table including separateroller means permitting movement of said coiled article across andlengthwise of said table, means for elevating said coiled articlereceiving table, and means operable independently of said receivingtable elevating means for vertically raising and lowering said firstmentioned roller means with respect to the top level of said receivingtable, said first mentioned roller means being disposed between aselected pair of said second mentioned roller means.

4. In a coil handling apparatus of the type described, the combinationof a coiling mandrel, a coil receiving table adapted to be disposedbeneath said coiling mandrel, said table being provided with a pluralityof coil supporting rollers, the axes of which are disposed transverselyto the axis of winding of the coil, means for raising and lowering saidtable and said rollers, an ironing roll mounted on said table, the axisof said ironing roli paralleling the axis of a coil disposed on themandrel, means operable independently of said first mentioned means forraising and lowering the ironing roll above and below the top level ofsaid coil receiving table, a stripper plate for pushing a coil off thecoiling mandrel and across the rolls of said coil receiving table, meansfor operating said stripper plate, and a common hydraulic system foroperating and synchronizing the actuation of both of said rais ing andlowering means andsaid stripper plate actuating means.

5. The combination as defined in claim 4, wherein said means foroperating said stripper plate is controlled by actuation of the meansfor raising and lowering said coil receiving table.

6. In a coil handling apparatus of the type described, the combinationof a collapsible coiling mandrel, a receiving table disposed beneath thecoiling mandrel, said table being provided with a plurality of coilsupporting rollers the axes of which are disposed transversely to theaxis of a coil on said mandrel, hydraulically operated means forelevating said table and said rollers, an ironing roll also mounted onsaid table, the axis ofsaid ironing roll paralleling the axis of a coildisposed on said mandrel, hydraulically operated means operableindependently of said first mentioned hydraulic means for raising andlowering said ironing roll above the top level of the coil receivingtable and into initial contact with a coil, a stripper plate, hydraulicmeans for collapsing said mandrel and for operating said stripper platewhereby said stripper plate can push a coil oif of the coiling mandreland across the supporting rolls of the coil receiving table, and acommon hydraulic system for operating and synchronizing the operation ofall of said hydraulic means.

7. The combination defined in claim 4, wherein said means for operatingsaid stripper plate is directly controlled in response to movement ofthe raising and lowering means for said coil receiving table.

8. In a coil elevator and transfer apparatus of the type describedadapted to be disposed beneath a coiling mandrel, the combination of acoil supporting elevator table provided with a plurality of coilsupporting rollers the axes of which are disposed transversely to theaxis of winding of the coil, means for raising and lowering said tableand said rollers into and out of contact with the coil, an ironing rollmounted centrally on said table and between a selected pair of said coilsupporting rollers, the axis of said ironing roll being disposedparallel to the axis of a coil placed on said table, and means forraising and lowering said ironing roll vertically above the level ofsaid other rollers prior to actuation of said table raising and loweringmeans.

9. In a coil elevator and transfer apparatus of the type described, thecombination of a coiling mandrel, a

coil supporting elevator table provided with a plurality of coilsupporting rollers the axes of which are disposed transversely to theaxis of a coil on the coiling mandrel, means for raising and loweringsaid table and said rollers, an ironing roll mounted on said coilsupporting table, means for raising and lowering said ironing roll abovethe level of the other rollers, and means for controlling the operationof both of said raising and lowering means whereby the coil elevatortable may be partially raised and the ironing roll fully raised so thatthe ironing roll may be brought into contact with the coil andthereafter the ironing roll may be retracted and taken out of contactwith the coil as the coil elevator table is raised such that saidsupporting rollers are brought into contact with the coil.

10. In a coil handling apparaus of the type described, the combinationof a collapsible coiling mandrel and a coil stripper plate, a coilelevator and transfer table disposed beneath the said mandrel, saidtable being provided with a plurality of coil supporting rollers, theaxes of which are disposed transversely to the axis of a coil on saidmandrel, means for raising and lowering said table and said rollers, anironing roll mounted on said coil supporting table, means for raisingand lowering said ironing roll above the lever of said supportingrollers, means for collapsing said mandrel, means for operating saidstripper plate, and control means for eifecting operation of all theaforesaid means whereby the coil elevator table may first be partiallyraised and the ironing roll substantially fully raised until the ironingroll contacts the coil and thereafter the ironing roll retracted as theelevator table is fully raised until the coil is supported by and movedacross the fixed rollers by said stripper plate upon the collapsing ofsaid coiling mandrel.

11. The combination defined in claim 10, wherein said means foroperating the stripper plate is directly controlled in response toactuation of the means for raising and lowering the coil receivingtable.

References Cited in the file of this patent UNITED STATES PATENTS1,931,484 Bosserdet et a1 Oct. 24, 1933 2,419,699 Wood Apr. 29, 19472,738,138 Russell Mar. 13, 1956 UNITED STATES PATENT OFFICE CERTIFICATEOF CORRECTION Patent No. 2,857,115 October 21, 1958 Robert B. Foulks Itis hereby certified that error appears in the printed specification ofthe above numbered patent requiring correction and that the said LettersvPatent should read as corrected below.

Column 10,- line 25,, for lever read level Signed and sealed this 31stday of January 1961.

(SEAL) Attest:

KARL H. AXLINE Attesting Ofiicer ROBERT C. WATSON Commissioner ofPatents

